activity
20222026
most citedJADES -- The Rosetta Stone of JWST-discovered AGN: deciphering the intriguing nature of early AGN

80 citations · 406 across the 39 of their papers we have counts for

collaborators

41 papers

astro-ph.GA2026

BlackTHUNDER Reveals a Massive Filament around a Compact AGN at

Giulia Tozzi, Hannah Übler, Eleonora Parlanti +27

Despite the growing number of compact active galactic nuclei (AGN) at discovered by JWST, their formation and evolution remain poorly understood. This paper investigates the…

astro-ph.GA2026

Unveil the nature of JWST-AGN and Little Red Dots with SKAO continuum surveys

Giovanni Mazzolari, Dharam V. Lal, Isabella Prandoni +6

The advent of JWST has revealed a large population of AGN at , which are dex more abundant than previously expected, including also the enigmatic population of Little…

astro-ph.GA2026

No evolution in the number density of little red dots from cosmic dawn to cosmic noon

Federica Loiacono, Roberto Gilli, Marco Mignoli +24

We present our search for little red dots (LRDs) in the "J1030 field", a region of the sky around the quasar SDSS J1030+0524, observed by the JWST EIGER program. Over 1…

astro-ph.GA2026

Evolution of AGN Across Cosmic Epochs with the SKAO

R. Kondapally, V. Singh, G. Mazzolari +10

Understanding the evolution of active galactic nuclei (AGN) and their host galaxies across cosmic epochs is one of the key science drivers of extragalactic astronomy. The detection…

astro-ph.GA2026

Little Red and Blue Dots: AGN-excited narrow lines, Lyman- emission, and resemblance to standard quasars

Sophia Geris, Roberto Maiolino, Xihan Ji +35

We present an analysis of a sample of 36 Little Red and Blue Dots (LRDs and LBDs) at , identified by JWST in the GOODS fields. While both categories are selected to ha…

astro-ph.GA2026

The first detection of dense gas in a massive main-sequence galaxy at cosmic noon

Jianhang Chen, Natascha M. Förster Schreiber, Rodrigo Herrera Camus +18

Dense gas is the direct fuel for star formation, but measuring it has long been difficult at z>2, especially in typical star-forming main-sequence galaxies. In this work, we report…

astro-ph.GA2026

NOEMA$^\rm{3D}$: A deep view of cold gas flows in a barred spiral galaxy at

Stavros Pastras, Reinhard Genzel, Linda J. Tacconi +35

We present a deep, high-resolution CO(4-3) IRAM-NOEMA observation of a main sequence, barred, spiral galaxy at , with an on-source integration time of hou…

astro-ph.GA2026★ 1 cited

NOEMA3D: Resolving radial gas flows in disk galaxies at z~1.1-1.6 with high-resolution CO observations

Jean-Baptiste Jolly, Linda J. Tacconi, Reinhard Genzel +34

We present NOEMA3D, a unique high-resolution study of purely molecular gas kinematics at to 1.6, providing a dedicated view of cold gas dynamics at the late stages of…

astro-ph.GA2026★ 2 cited

The search for Population III: Confirmation of a HeII emitter with no metal lines at z=10.6

Roberto Maiolino, Hannah Übler, Michele Perna +49

We report the confirmation of a HeII1640 emitter located at 3 pkpc from the galaxy GN-z11, at z=10.6. The detection, based on JWST NIRSpec-IFU high-resolution spectroscopy, conf…

astro-ph.GA2026

NOEMA3D: Extended CO, [C I] and dust in massive star-forming main-sequence galaxies at cosmic noon

Jianhang Chen, Linda J. Tacconi, Reinhard Genzel +34

We present a spatially resolved study of cold molecular gas and dust in ten main-sequence galaxies at z=1.1-1.6, using observations of CO(4-3), CO(3-2), [CI](1-0), and dust continu…

astro-ph.GA2026

Constraints on the host galaxy and AGN properties of three z > 6 JWST AGN from NOEMA observations

Giovanni Mazzolari, Hannah Übler, Rodrigo Herrera Camus +32

We targeted with deep NOEMA observations the [CII]158m emission of three JWST-discovered AGN at z>6. Two of them have the typical features of Little Red Dots (LRDs), while the t…

astro-ph.GA2026

Radio selection of heavily obscured AGN in the J1030 field: unraveling a missing Compton-thick population

Giovanni Mazzolari, Roberto Gilli, Marco Mignoli +21

We tested the effectiveness of radio selection to discover heavily obscured AGNs, particularly at high-z, and we measured their abundance for the first time from a radio perspectiv…

astro-ph.GA2026★ 2 cited

The Little Blue and Red Dots Rosetta Stones: Non-Gaussian broad lines, hot dust, and X-ray weakness

M. Brazzini, F. D'Eugenio, R. Maiolino +31

The population of Active Galactic Nuclei (AGN) newly discovered by the James Webb Space Telescope (JWST) exhibits peculiar properties that distinguish it from both local type I AGN…

astro-ph.HE2025★ 3 cited

The Advanced X-ray Imaging Satellite (AXIS) Community Science Book

Michael Koss, Nafisa Aftab, Steven W. Allen +395

The AXIS Community Science Book represents the collective effort of 592 scientists worldwide to define the transformative science enabled by the Advanced X-ray Imaging Satellite (A…

astro-ph.GA2025

Resolving stellar populations, star formation, and interstellar medium conditions with JWST in a large spiral galaxy at

Eleonora Parlanti, Giulia Tozzi, Natascha M. Förster Schreiber +30

Cosmic noon represents the prime epoch of galaxy assembly, and a sweet spot for observations with the James Webb Telescope (JWST) and ground-based near-IR integral-field unit (IFU)…

astro-ph.GA2025★ 3 cited

JWST-discovered AGN: evidence for heavy obscuration in the type-2 sample from the first stacked X-ray detection

Andrea Comastri, Giorgio Lanzuisi, Fabio Vito +9

One of the most puzzling properties of the high-redshift AGN population recently discovered by JWST, including both broad-line and narrow-line sources, is their X-ray weakness. Wit…

astro-ph.GA2025

BlackTHUNDER: Evidence of three massive black holes in a z~5 galaxy

Hannah Übler, Giovanni Mazzolari, Roberto Maiolino +41

We present observational evidence of three massive, accreting black holes (BHs) in the z=5.0167 galaxy J0148-4214 from JWST/NIRSpec-IFU spectroscopy. The BHs are revealed through b…

astro-ph.GA2025★ 7 cited

BlackTHUNDER: Shedding light on a dormant and extreme little red dot at z=8.50

Gareth C. Jones, Hannah Übler, Roberto Maiolino +17

Recent photometric surveys with JWST have revealed a significant population of mysterious objects with red colours, compact morphologies, frequent signs of active galactic nucleus…

astro-ph.GA2025★ 17 cited

A direct black hole mass measurement in a Little Red Dot at the Epoch of Reionization

Ignas Juodžbalis, Cosimo Marconcini, Francesco D'Eugenio +37

Recent discoveries of faint active galactic nuclei (AGN) at the redshift frontier have revealed a plethora of broad \Halpha emitters with optically red continua, named Little Red D…

astro-ph.GA2025★ 8 cited

BASS. XLIX. Characterization of highly luminous and obscured AGNs: local X-ray and [NeV]3426 emission in comparison with the high-redshift Universe

Alessandro Peca, Michael J. Koss, Kyuseok Oh +21

We present a detailed analysis of the most luminous and obscured Active Galactic Nuclei (AGNs) detected in the ultra-hard X-ray band (14-195 keV) by Swift/BAT. Our sample comprises…

astro-ph.GA2025

The properties of X-ray selected AGN in protoclusters pinpointed by Enormous Lya Nebulae

A. Traina, F. Vito, F. Arrigoni-Battaia +11

Protoclusters of galaxies are overdense regions of the Universe characterized by large gas reservoirs. Such environments make them perfect laboratories to investigate galaxy-AGN co…

astro-ph.GA2025★ 1 cited

JADES and BlackTHUNDER: rest-frame Balmer-line absorption and the local environment in a Little Red Dot at z = 5

Francesco D'Eugenio, Ignas Juodžbalis, Xihan Ji +32

We present a broad-line AGN at z=5.077, observed with both NIRSpec/MSA and NIRSpec/IFU by the JADES and BlackTHUNDER surveys. The target exhibits all the hallmark features of a 'Li…

astro-ph.GA2025★ 10 cited

A big red dot at cosmic noon

Federica Loiacono, Roberto Gilli, Marco Mignoli +22

We report the discovery of a little red dot (LRD), dubbed BiRD ('big red dot'), at in the field around the quasar SDSSJ1030+0524. Using NIRCam images, we identifie…

astro-ph.GA2025★ 27 cited

A black hole in a near-pristine galaxy 700 million years after the Big Bang

Roberto Maiolino, Hannah Uebler, Francesco D'Eugenio +36

The recent discovery of a large number of massive black holes within the first two billion years after the Big Bang, as well as their peculiar properties, have been largely unexpec…